> past 256k it looks like your usage consumes your limits faster

This is false. My guess is what is happening is #1 above, where restarting a stale session causes a 256k cache miss.

That said, I hear the frustration. We are actively working on improving rate limit predictability and visibility into token usage.

just like everybody else I and my colleagues at work have seen major regressions in terms of available usage over the past month, seemingly unrelated to caching/resuming. On an enterprise sub doing the same work I personally went from being able to have several sessions running concurrently without hitting limits, to only having one session at a time and hitting my 5h every day twice a day in 3-4 hours tops (and due to the apparent lower intelligence I have been at the terminal watching what opus is doing like a hawk, so it's not a I went for coffee I have to hit the cache). The first day I ever hit my 5h this year was the day everybody reported it (I think it was the Monday you introduced the 2x promotion after hours? not sure, like 3 weeks ago?)

To avoid 1M issues, this week I have also intentionally used the 256k context model, disabled adaptive thinking and did the same "plans in multiple short steps with /clear in-between" to minimize context usage, and yet nothing helps. It just feels ~2x to ~3x less tokens than before, and a lot less smart than in February.

Nowadays every time I complete a plan I spend several sessions afterwards saying things like "we have done plan X, the changes are uncommitted, can you take a look at what we did" and every time it finds things that were missed or outright (bad) shortcuts/deviations from plan despite my settings.json having a clear "if in doubt ask the user, don't just take the easy way out". As a random data point, just today opus halfway through a session told me to make a change to code inside a pod then rollout restart it to use said change, and when called out on it it of course said that I was right and of course that wouldn't work...

It is understandable that given your incredible growth you are between a rock and a hard place and have to tweak limits, compute does not grow on trees, but the consistent "you are holding it wrong" messaging is not helpful. I am wondering if realistically your only option is to move everybody to metered, with clear token usage displayed, and maybe have pro/max 5/max 20 just be a "your first $x of tokens is 50/75% off". Allow folks to tweak the thinking budget, and change the system prompt to remove things like "try the easy solution first" which anecdotally has been introduced in the past while, and allow users to verify on prompt if the prompt would cause the whole context to be sent or if cache is available.